High performance KB Chrysler 318 pistons offer a significant performance improvement for your engine, at a very affordable price. We have these piston sets available in a wide range of sizes including standard bore and many popular oversizes. If you are rebuilding a Chrysler, Plymouth, Mopar, Dodge 318 5.2 engine and are looking for improved performance, without the higher cost of forged pistons, KB performance pistons are an excellent alternative for many street, muscle car restoration, cruising and street / strip applications. We have 318 flat top pistons as well as 318 high compression dome top pistons.
For reference the original stock specifications were:
We do not recommend hypereutectic pistons for use with superchargers, turbochargers, nitrous systems or for serious racing engines. For those applications we strongly recommend forged pistons. Our complete piston index list for stock replacement, cast, hypereutectic and forged pistons is available here: CE Engine Pistons Index
While you are replacing your engine pistons it is a good time to also upgrade your rotating assembly by installing modern connecting rods. Why risk damage to your rebuilt performance engine by using old stock connecting rods that have been through who knows what kind of abuse.
With the high cost of machine shop service these days you can often upgrade to far stronger modern rods for not much more than the cost of reconditioning a set of stock rods.
Molnar Technologies 4340 Steel Billet H Beam 318 Connecting RodsMolnar Technologies H Beam 318 5.2 rods are machined from billet 4340 steel, and then heat treated to provide improved strength. To make the rods even stronger, they are shot peened to which also increases fatigue life. All Molnar connecting rods are fitted with highly durable premium bronze bushings for use with floating pin type pistons. Each rod set includes ARP fasteners, moly lubricant and installation guidelines. All Molnar rods are finished in the United States at the Molnar Technologies shop in Michigan. Critical rod dimensions are are held to very precise tolerances of +/- .0001 of an inch, which is the tightest tolerance you will find in the performance and racing aftermarket.
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Description and Length | Weight | Bolt Size | Rod Pin Size | Pin Size | BE Width | PE Width | Part Number | |
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6.123 Chrysler with .984" Pin | 623 | 7/16 | 2.125 | 0.984 | 0.927 | 1.03 | DH6123TSB8-A
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Eagle SIR 318 I beam connecting rodsEagle Specialty Products SIR connecting rods are an economically priced alternative to the time and expense involved in reworking a set of stock OEM rods. SIR connecting rods are forged from 5140 steel and most are available for both pressed fit pin use, or bushed to work with full floating piston pins. ESP I beam SIR Eagle connecting rods utilize ARP 3/8" Wave Lok bolts and nuts. Eagle SIR rods are economically priced and are often less expensive than having your old stock rods reconditioned.
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